Table 21.--Number of growing-stock trees (5.0+ inches d.b.h.) on timberland by species and diameter class, Maryland, 1999 
  
                                                             (In thousands of trees) 
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                                                    Diameter class (inches at breast height)                                                    
        Species        ___________________________________________________________________________________________________     All               
                            5.0-      7.0-     9.0-     11.0-     13.0-     15.0-     17.0-     19.0-     21.0-              classes       SE   
                            6.9       8.9     10.9      12.9      14.9      16.9      18.9      20.9      28.9      29.0+                       
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  White/red pine           2,073     2,881     1,519       560       191       101        88         0        32         0     7,446      49.0  
  Loblolly pine           17,784    13,333     8,445     5,454     2,888     1,764       893       533       212         0    51,306      11.7  
  Virginia pine            5,077     4,665     2,821     1,971       871       685        51         0        36         0    16,179      16.8  
  Other yellow pines          59       118        29        29        69         0         0         0         0         0       305      79.0  
  Other softwoods          1,672     1,013       353       283       242        86        93        60        54        21     3,877      24.0  
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    Total softwoods       26,665    22,011    13,167     8,297     4,261     2,636     1,125       593       334        21    79,112       9.7  
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  Red maple               20,005    11,006     7,540     3,927     3,262     1,480     1,058       787     1,231       260    50,555       6.1  
  Sugar maple              1,992     1,533       723       750       166        85        57         0        72        73     5,451      20.8  
  Hickory                  3,383     2,254     1,763     1,253       775       393       235       102       260        14    10,432      12.3  
  Beech                    3,534     1,761     1,049       703       421       376       175       127       127        36     8,309      13.4  
  Sweetgum                12,151     7,005     5,454     3,993     2,652     1,493       630       263       523        39    34,203      10.5  
  Yellow-poplar            4,172     3,083     2,347     2,529     1,849     1,872     2,090     1,307     1,860       289    21,399       9.4  
  Blackgum                 6,698     2,616     1,926       965       618       428       205       128       138         0    13,723       8.9  
  Ash-walnut-cherry        9,461     5,588     3,587     1,783       746       473       435       103       319       109    22,604      13.2  
  Select white oaks        4,598     4,671     5,080     3,113     2,341     1,501     1,142       919       838       227    24,431       9.8  
  Select red oaks          1,089     1,342       884     1,561       889       697       317       197       378       148     7,502      14.8  
  Other white oaks         2,588     2,965     2,589     1,402     1,546       712       721       182       160         0    12,865      17.1  
  Other red oaks           5,539     3,624     3,795     3,460     2,976     2,264     1,381     1,039       997       314    25,391       8.4  
  Black locust             1,895     2,111       941       515       458        81         0        81       133         0     6,215      24.3  
  Other hardwoods         12,696     5,414     2,813     1,467       833       348       338       215       398       101    24,624       9.8  
                       ______________________________________________________________________________________________________________ 
    Total hardwoods       89,802    54,973    40,493    27,421    19,532    12,205     8,785     5,449     7,435     1,611   267,707       3.2  
                       ______________________________________________________________________________________________________________ 
  All species            116,467    76,984    53,660    35,719    23,793    14,841     9,910     6,043     7,770     1,632   346,819       3.1  
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  SE                         4.5       4.9       4.6       4.5       5.2       6.1       7.6       9.5       8.7      17.7       3.1 
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